Society of Interventional Radiology Position Statement on Genicular Artery Embolization for Symptomatic Knee Osteoarthritis

Knee osteoarthritis (KOA) is a prevalent musculoskeletal condition characterized by a significant therapeutic gap between the failure of conservative medical therapies and surgical arthroplasty. Contemporary evidence supports a model in which chronic synovitis and pathologic neoangiogenesis, closely coupled to perivascular nociceptive nerve growth, serve as significant contributors of pain and peripheral sensitization in KOA. Genicular artery embolization has emerged as a targeted, joint-preserving vascular intervention performed by interventional radiologists that directly addresses the inflammatory and neurovascular components of KOA. The purpose of this societal-endorsed position statement is to synthesize the current knowledge base for genicular artery embolization and review its biologic rationale, clinical evidence, technical considerations, safety profile, and evolving regulatory landscape.